The Spark Core is an Arduino-compatible, Wi-Fi enabled, cloud-powered development platform that makes creating internet-connected hardware a breeze.

This little board packs a punch: with a 72 MHz ARM Cortex M3, the best Wi-Fi module on the market, wireless programming, and lots of pin outs and peripherals, there’s nothing you can’t build with the Core.

This makes for a very cheap WIFI enabled Arduino board(About US$40 / DIP package). For more details have a look at their Kickstarter Campaign.